On 2020/6/16 18:59, Thomas Huth wrote:
When building for 32-bit hosts, the compiler currently complains:
x86/pmu.c: In function 'check_gp_counters_write_width':
x86/pmu.c:490:30: error: left shift count >= width of type
Use the correct suffix to avoid this problem.
Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx>
Thanks, I admit I did not test it on a 32-bit host.
---
x86/pmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/x86/pmu.c b/x86/pmu.c
index 57a2b23..91a6fb4 100644
--- a/x86/pmu.c
+++ b/x86/pmu.c
@@ -487,7 +487,7 @@ static void do_unsupported_width_counter_write(void *index)
static void check_gp_counters_write_width(void)
{
u64 val_64 = 0xffffff0123456789ull;
- u64 val_32 = val_64 & ((1ul << 32) - 1);
+ u64 val_32 = val_64 & ((1ull << 32) - 1);
u64 val_max_width = val_64 & ((1ul << eax.split.bit_width) - 1);
int i;
